(X+6):5<=3
X+6<=3X5
X+6<=15
X<=15-6
X<¸=9 SOLUTIILE 0,1,2,3,4,5,6,7,8,9
5X+3<=4X+5
5X-4X<=5-3
X<=2 SOLUTIILE 0,1,2
9X+6>=12X
6>=12X-9X
6>=3X
6:3>=X
X<=2 SOLUTIILE 0,1,2
3X+1<=4X
1<=4X-3X
1<=X
X>=1 SOLUTII 0,1
105X-25<=100X+200
105X-100X<=200+25
5X<=225
X<=225:5
X<=45 SOLUTII 45,46,47,...........
8X-2>20X-14
-2-4>20X-8X
6>12X
12X<6
X<12:6
X<2 SOLUTII 0,1